jesus said, who among you who have a servant plowing or herding cattle for you, would say to the servant, after he returned from the field: let's eat! but the master say to the servant: prepare the food, tie your waist and serve me until I finished eating and drinking. and after that you may eat and drink. did he thank the servant because the servant had done what assigned to him? so also if you have done everything that was assigned to you, let you said: We are servants of the useless: we just do what we must do."